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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentEnergy SuppliersBolligenWärmeverbund Sonnenrain GmbH
Wärmeverbund Sonnenrain GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Wärmeverbund Sonnenrain GmbH specialises in the construction and operation of energy supply systems and distribution networks. Using insulated hot-water pipelines, the company delivers heat for space heating and domestic hot-water preparation to buildings and also plans, finances, builds and operates photovoltaic systems to generate renewable energy.

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Products & services

Industry:Energy Suppliers
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Wärmeverbund Sonnenrain GmbH

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Energy supply installations and distribution networks
Creation and operation of energy supply installations and distribution networks, with insulated hot-water pipes for heating supply and for preparing domestic hot water.
Photovoltaic systems
Planning, financing, construction and operation of photovoltaic systems to generate clean and sustainable energy for own properties and other buildings.
Trust & reputation

ranQ Trust Score of Wärmeverbund Sonnenrain GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

Wärmeverbund Sonnenrain GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Wärmeverbund Sonnenrain GmbH scores 77.2 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.86.512%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Wärmeverbund Sonnenrain GmbH scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).83.322%
Wärmeverbund Sonnenrain GmbH scores 0.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Einschlagstrasse 28
3065 Bolligen

At a glance

Legal form
Limited Liability Company
UID
CHE-422.709.959
Founded
2016 · 10 years
Last commercial register change
November 18, 2022
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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